Home / 28,286.70-42,399.06-14,224.29

Finding the Fourth Proportional to 28,286.70, 42,399.06 and 14,224.29

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Solution

The fourth proportional to 28,286.70, 42,399.06 and 14,224.29 is: 21,320.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,286.70 : 42,399.06 = 14,224.29 : x
  2. Step 2: Convert to fraction form
    28,286.70/42,399.06 = 14,224.29/x
  3. Step 3: Cross multiply
    28,286.70x = 42,399.06 × 14,224.29
  4. Step 4: Simplify right side
    28,286.70x = 603,096,525.17
  5. Step 5: Solve for x
    x = 603,096,525.17/28,286.70
  6. Step 6: Final answer
    x = 21,320.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.